K3Chess is a graphical chess interface for Kindle. Below you will find short installation instructions for various Kindle models. This program was compiled to work on Kindle 3, 4 (gray & black), and DXG, but it was not extensively tested on all of the devices and all firmware versions (including future versions), so you may find yourself to be the first person to try it on a particular device or particular firmware version. Should you have any questions, please leave a message in this thread or post a bug report on the project page.

Installing K3Chess on Kindle 3/DXG with launchpad:
1) Download this archive if you have qtKindle library installed in the root folder of your Kindle user disk, or this archive if you don't have qtKindle library on your Kindle.
2) Unpack the downloaded archive into the root folder of your Kindle user disk.
3) Restart your Kindle.
4) Use Shift K C launchpad combination to start K3Chess.

Installing K3Chess on Kindle 3/DXG (without launchpad) and Kindle 4:
1) Download this archive if you have qtKindle library installed in the root folder of your Kindle user disk, this archive if you don't have qtKindle library on your Kindle.
2) Unpack the downloaded archive into the root folder of your Kindle user disk.
3) Download this archive, open it and find the installer.bin file with the correct suffix for your device: Kindle Keyboard Wi-Fi: k3w; Kindle 3G: k3g; Kindle 3G International: k3gb; Kindle 4: k4x.
4) Extract this file into the root folder of your Kindle user disk.
5) On your Kindle, select Menu > Settings, then Menu > Update Your Kindle. Press OK to start the update. After the update, your device will reboot.
6) To start the K3Chess application, choose the "Chess" kindlet on your bookshelf.
7) To uninstall the "Chess" kindlet, run the appropriate uninstall.bin file from the same archive.

Is a Poblem with FW 3.2.1 using Cursor pad. Cursor right moves Cursor to left. Cursor up, down and left are ok.

You can try to delete the keys.ini file from the K3Chess directory and restart the program. Then it will ask you to redefine keys. Be very careful to press the correct keys for Left, Right, etc. I am sure this will help. If not, contact me in this thread or by private message and send me your keys.ini file. We shall see what can be done.
Please note that the program is still in alpha stage and bugs are possible, so do not hesitate to report them either here or to the project's Issues page. Right now an update is being prepared and if anything comes up in this interval, the fixes can be included in the update.

Version 0.1.4 is available as an update package or a full download (links updated in the top post). Changes: fixed several bugs (one is related to castling in chess960 mode), improved engine parameters with respect to style of play and time control. If you find a bug in your installation of K3Chess, please install this update first, the bug may have already been fixed.

An updated version 0.1.5 was released. It fixes a few bugs, adds French localization kindly contributed by PoP and introduces two new opening books for Toga II engine (gambit.bin and varied.bin) with the corresponding profiles.

I contribute with my translation into Spanish, I have put two versions: one is grammatically correct but is displayed incorrectly and the other does not contain special characters or accented vowels (like "ñ", "á", etc.) and therefore is properly displayed, the two version are understandable. It's your call to put whatever you decide.

I contribute with my translation into Spanish, I have put two versions: one is grammatically correct but is displayed incorrectly and the other does not contain special characters or accented vowels (like "ñ", "á", etc.) and therefore is properly displayed, the two version are understandable. It's your call to put whatever you decide.

Thx again

@Luffier
The incorrect display is caused by the improper Windows 1252 : Western European encoding you have used, the program needs Unicode encoding.

Not that I understand Spanish, but I have blindly converted your localisation to Unicode UTF-8 (using EditPad Pro v6.4.5). I believe this es.ini now displays properly and is the single Spanish localisation necessary.